Tray It!

TrayIt! allows to save precious Taskbar space for minimized windows. For each application which applies TrayIt! it creates a small icon in the System Tray. (System Tray area is located near the Clock). When application's window is minimized this icon represents the application on the Taskbar instead of the regular "minimized rectangle".
It is particularly useful for background tasks you typically keep running on your PC all day long like your favorite E-mail client, Real Player, etc.
TrayIt! runs on Windows 95/98/Me, NT/2000/XP and does not require any installation.
Simply create a new folder and place TrayIt!.exe and TrayIt!.dll there. When started, TrayIt! will show a dialog box with a short explanation how to use it. You may choose to load TrayIt! on system startup by selecting "Option" and checking "Load TrayIt! on StartUp" box.

Download from this link.